Siemens 9700, Installation Instructions Manual, Page: 21 / 45

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4-Wire Wye, 3-Element Direct Connection Diagram
LINE
A B C N
LOAD
Export
Import
CT Shorting Switch
or Test Block
Switchgear
Chassis Ground
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Fuses
2A
V3
V2
V1
I1
I2
I3
I4
V1
V2
V3
Vref
I11
I12
I21
I22
I31
I32
I41
I42
L/+
N/-
_
+
Supply Power
(dependent on equipped
power supply option)
Required if power is supplied from
an ungrounded source (i.e. L-L voltage)
3 A slow-blow
3 A slow-blow
CTs
4-Wire Wye, 3-Element, 3 PT Connection Diagram
Neutral current
input is optional.
CT Shorting Switch
or Test Block
LOAD
Export
Import
Switchgear
Chassis Ground
CTs
Fuses
Fuses
2A
PTs
A B C N
LINE
V3
V2
V1
I1
I2
I3
I4
V1
V2
V3
Vref
I11
I12
I21
I22
I31
I32
I41
I42
L/+
N/-
_
+ Supply Power
(dependent on equipped
power supply option)
3 A slow-blow
3 A slow-blow
2
38)
The 9700 Power Meter
senses the line-to-neutral (or
ground) voltage and current
for each phase, creating an
equivalent three element
metering configuration.
VOLTS MODE should be set
to 4W-WYE.
2
38)
PTs must be used for 4-wire
Wye systems with voltages
over 347 VAC line-to-neutral
/ 600 VAC Line-to-line. Both
the PT primary and
secondary must be wired in
a Wye (star) configuration.
Voltage sense leads should
be protected by breakers or
fuses at their source.
Wiring must be exactly as
shown for correct
operation.
VOLTS MODE should be set
to 4W-WYE.